After completing this work I received “The Recrudescence of Leprosy and its Causation,” by William Tebb. The author seeks to prove that leprosy is everywhere on the increase as the result of the introduction of vaccination. The book as a whole is directed against vaccination as dangerous. Distinct proofs for his contention that leprosy may be conveyed by vaccination from arm to arm, the author, to our thinking, does not supply. Since Dr. Arning found lepra-bacilli in the contents of vaccine vesicles in lepers, the possibility of the communication in this way can scarcely be denied. But that it can be frequent, I cannot possibly believe. In Norway, vaccination has been compulsory during all those years in which leprosy has steadily diminished. In 1891 I put the question to all those doctors in Norway who had anything to do with leprosy, whether they had ever met in their practice with a case which could be ascribed to vaccination. Not a single one had observed such a case. And yet, here in Norway, lymph must often be taken from the children of leprous families. But since leprosy is very rare in children, it is evident that leprosy cannot be conveyed in this way. That vaccine vesicles in the non-leprous members of leprous families contain lepra-bacilli is incredible. CHAPTER VIII. TREATMENT. Since many cases of Leprosy terminate in cure by the disintegration and elimination of the bacilli, one might imagine that it would be a tolerably easy task to find a suitable treatment for the disease. But this is far from being the case. Treatment of Leprosy has been carried out from time immemorial. In the Bible there is little concerning any treatment which was regularly applied in Leprosy; the disease being apparently regarded as beyond human power. Later, all possible and, we may say, impossible remedies, such as the teeth of elephants, the flesh of crocodiles and serpents, the fat of panthers, lions and bears, and so on, were applied. In mediæval times, the same class of remedies was used along with religious incantations.